Glass furnace



Sept. 1926.

C. D. MQARTHUR GLAS S FURNAC E 2 Sheets-Sheet 1 Original Filed NOV. 1,1919 Patented Sept. 7, 1926.

UNITED STATES- PATENT OFFICE.

CHARLES D. HOARTHUB, OF PITTSBURGH, I PENNSYLVANIA A S SIGNOR TO BLAW-KNOX COMPLANY, OI BLAWNOX, PENNSYLVANIA, A CORPORATION OF NEW JER- SEY.

GLASS FURNACE.

Original application filed November 1, 1919, Serial No. 334,996. Dividedand this application filed larch Figure 1 is a sectional plan view ofone form of glass furnace; and I Figure 2 is a transverse section of thefurnace shown in Figure 1.

My invention has relation to glass furnaces, and is designed to providea glass furnace, or tank, in which the furnace or tank walls arecomposed of watercooled members which are adapted to resist thedestructive action of the heating to which the are subjected, and whichare constructe in separate units so arranged that any defective unit maybe readily removed or replaced.

The present invention-.- is a division of my application Serial No.334,996, filed November 1, 1919. Y i

In accordance with my invention, I construct the side and end walls ofthe furnace of a plurality of hollow metal sections or units 2, whichmore or less closely abut eachother. at their adjacent edges. Eachsection or unit is provided with suitable water circulating connections,as indicated at 3 and 4, by means of w ich water or other cooling fluidmay be cir ulated therethrough. The inlet' pipes 4; preferably extend.mto the lower portions of the sections, while the outlet pipes havearms 3 extending up% wardly into the highest pointv of the section. Thisarranement prevents the formation of steam poc et's, since the steamwhich collects in the pockets '3" may readily pass out through the pipes3.- The inner surfaces of these sections. are directly exposed to andformthe limiting wall for the glass in the tank. In practice, the glasswhich is in immediate contact with the sections becomes chilled andfreezes in the joints so as to form-effective sealing means therefor.

The water cooled sections or units are supported from; the frame of thefurnace by means which will permit of the ready removal of any sectionor unit without disturbing the adjacent sections or units. Forthispurpose, I preferabl weld or otherwise secure to the outer sur acesthereof angle strips 6 extending transversely thereof and which areengaged b stay-rods 7. .These stay rods are removab y secured by nuts 8in the buckstays 9 of the furnace, with their inner ends engaging thestrips 6. This arrangement forms efiective support for the Serial No.451,486.

upper surfaces sloping in opposite directions from the center lines, asshown in Figure 2, thus leaving intermediate spaces between the sectionsand the floor blocks which can be filled with any suitable refractorymaterial, such .as indicated at 13. This avoids direct contact of toogreat an area of, the Water cooled surfaceswith the bottom blocks.

The doors and door frames of the furnace also are preferably providedwith a suitable cooling means, such as indicated at 14 and 15.- Thesills of the door openings may als li6be provided with coolers such asshown at The advantages ,of my invention result from the fact that itprovides means whereby the refractory blocks whichvusually form thewalls of the furnace may be removed or dispensed with, and such walls beformed directly of sections or units which are so arranged that anysection or unit can be readily removed'or replaced.

I claim:

1. A glass tank furnace having a bottom formed of refractory blocksseated upon a series of hollow water-cooled members, said members beingindependent of each other and separately removable, substantially asdescribed.

2. A glass tank furnace having a bottom formed of refractory blocksseated upon a series of hollow water-cooled members, said members beingindependent of each other and separately removable and having limitedportions only thereof in direct contact with said blocks, substantiallyas .described.

3. A glass tank furnace having a bottom formed of refractory blocksseated upon a series of hollow water cooled members, said members beingseparately removable and independent of each other and each ,havin itsupper surface inclined to provide limited portions only in so portingcontact with said blocks, substantially as described.

' sections for 4. glass tank furnace havin a vertical wall formedentirely by a plum ity of hollowr'emovableenclosed water cooled metal'lic sections placed sideby side independently of each other, saidsections havin their inner surfaces directly exposed to an forming thelimiting wall for the glass in the tank and having means for the ofitakeofvapor therefrom, substantially as described.

- 5. A glass tank furnace having a vertical wall formed by 'a pluralityof independent and separately removable enclosed water cooled metalsections placed side by side, said sections'having their inner surfacesdirectly exposed to and forming. the limiting wall forthe glass in thetank, buckstays exterior of said sections, means co-operating tinuouslyextending encircling walls, said sections being independent of eachother and placed side by sidewith their meet-' ing edges free of eachother, means sup-.

porting said sections for independent removal, a nd means co-operatingwith each section for establishing a circulation of cooling watertherethrough, substantially as described.' A l 7. A glass furnace havinga wall compris-= ing a series of metallic sections having continuouslyextending encircling walls, said sectionsbeingindependent of each otherand placed side by side with their meeting edges free ofeach other,means supporting said independent removal, and means co-operating witheach section for establishing a circulation of cooling water free ofeach other, each'of said sections having continuously extending enclosinwalls, means for circulating cooling flui throu h each of said sections,and means entire y exterior of said sections for supporting the same forindependent removal,

substantially as described.

9. A furnace wall comprising a series of independent and separatelyremovable enclosed hollow water cooled metal sections placed side byside, each section having independent water circulating connectionscomprising an inletpipe extending into the lower. portion of the sectionand an outlet pipe extendin into the section. below its upper end anextending upwardly therein to a oint adjacent its to wall, said sectionshaving high points or the collection and ofitake of vapors,substantially as described. f

10. A glass tank furnace having a bottom formed of refractory blocksseated upon a series of hollow water, cooled members, said members beingseparatcl removable and having limited portions only thereof in directcontact with said blocks, said limited portions forming high points forthe collection and 'ofltake ofvapors, an inlet connection for each ofsaid members, and an ofi'takeconnection co-operatingwith each of saidlimited portions, substantially as described.

In testimony whereof I have hereunto set my hand.

CHARLES n. McARTHUR.

